NTN BEARING CORPORATION OF AMERICA
NTN BEARING CORPORATION OF AMERICA
Head Office
1600 E. Bishop Court, P.O. Box 7604
Mount Prospect, IL 60056-7604, U.S.A.
Phone: 847-298-7500
Fax: 847-699-9744
Toll Free: 800-323-2358
Email: mkt@ntnamerica.com
Website: www.ntnamericas.com
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Unit of Measure

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Ordering Options

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Technical Specifications

Type

 N/A Machined-Ring Needle Roller Bearing

Roller Type

 N/A Needle

Bearing Type

 N/A Needle Roller Bearing

Material

 N/A High Carbon Chrome Steel

Cage Material

 N/A Steel

Limiting Speed - Oil

 N/A 21000 RPM

Limiting Speed - Grease

 N/A 14000 RPM

Enclosure

 N/A Open

Static Load Rating

 N/A 4750 lbf21100 N21.10 kN

Dynamic Load Rating

 N/A 4400 lbf19500 N19.50 kN

Weight

 N/A 0.121 lb0.055 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/o Inner Ring - RNA49.R, RNA59, RNA69.R, NK.R, MR Series - Dimensions

Fw

 N/A 0.6250 in15.875 mm

Fw Tolerance

 N/A 0.033/0.020 mm

D

 N/A 1.1250 in28.575 mm

C

 N/A 1.0000 in25.400 mm

r

 N/A 0.0236 in0.600 mm

Da max

 N/A 1.0433 in26.500 mm

ras max

 N/A 0.0394 in1.000 mm